Device for holding spinning rings



May 17, 1932., A. H. LAWE 1,858,672

DEVICE FOR HOLDING SPINNING RINGS Filed May 7, 1929 Patented May 17,1932 U STATES PATET ALFRED H. LAWE, OF BID-DEFORID, MAINE, ASSIGNOR TOSACO-LOWELL SHOPS, OF NEW- TON UPPER FALLS, MASSACHUSETTS,

A CORPORATION OF MASSACHUSETTS DEVICE FOR HOLDING SPINNING RINGSApplication filed May 7,

This invention relates to devices for holding or supporting the rings ofspinning or twister frames.

It is a common practice to mount such rings in holders and to supportthe holders removably in the ring rail of the machine. The presentinvention is particularly concerned with the mounting of the rings ortheir holders and it aims to devise a construction which can bemanufactured and assembled more economically than prior arrangementswhile still serving to hold the spinning or twister ring securely in itsoperative position.

The nature of the invention will be readily understood from thefollowing description when read in connection with the accompanyingdrawings, and the novel features will be particularly pointed out in theappended claims.

In the drawings,

Figure 1 is a perspective View of a twister ring mounted in a holderembodying features of this invention;

Fig. 2 is a perspective View. partly in crosssection, of a part of aring rail showing one of the apertures in which the ring holder ismounted;

Fig. 3 is a perspective view of a split spring ring which preferably isused to maintain the holder in position;

Fig. 4 is a vertical sectional View through a ring rail showing a ringand holder therefor mounted in it; and

Fig. 5 is a vertical sectional view, partly in a elevation, of a ringand spindle in their normal relationship to each other.

Referring first to Fig. 5 the spindle rail or box rail of a twisterframe is shown at 2, the ring rail at 3, and a spindle at 4. Thetraveller is indicated at 5v and the ring on which it runs at 6. Theseparts are shown in the relationship which they normally occupy in atwister frame or ring spinning frame.

The ring 6 is supported in a holder 7 which consists of a split annulus,usually made of cast iron and provided with a groove or seat in itsupper surface to receive the lower flange of the ring. The holder gripsthe ring due to 6 its inherent resiliency, but it can be spread orexpanded slightly to release the ring.

1929. Serial No. 361,169.

The present invention is particularly concerned with the construction ofthis holder and the mounting of it in the ring rail. Re-

ferring more particularly to Figs. 1 to 4, in-

elusive, it Will be seen that the holder7 includes a flange a to rest onthe upper surface of the ring rail and a taper-ed shank which projectsthrough a circular aperture 8, Fig. 2, in the ring rail. shortcylindrical shoulder b and a tapered or frusto-conical portion 0; whichextends downwardly from the shouldered portion. The shoulder b may bemade of such a diameter as to fit snugly in the aperture 8, and Y thelower end of the tapered part 0 should be made of the same diameter asthe part b or slightly smaller in diameter than said part, so that theholder can be inserted readily in the aperture 8. .A. split spring ring9 sub- The shank includes a crates with the tapered or bevelled surfacesof both the rail and the ring holder shank to center the holder and alsoto resist any movement of the holder upwardly out of its normal oroperative position. It will be observed that the surface 0 of the ringholder is tapered in the same general direction as the tapered orbevelled surface 10 on the lower side. of the ring rail, but that theformer has a shaper pitch or steeperslope than the latter, the twotapered surfaces converging as they extend upwardly. The spring 9engages both of these surfaces and because of its tendency to contract,it not only holds the ring holder'seated on the rail, but also tends tocenter the tapered surface of the ring holder shank in the countersunkaperture through which the shank extends. In

occurs. Such an arrangement, therefore, locks the ring holder in itsoperative position on the ring rail much more securely than otherwisewould be the case. This is important in many machines where the pull ofthe yarn on the traveller exerts a considerable upward force on the ringand ring holder.

In placing a holder in the ring rail initially it is simply inserted inthe aperture 8 and the spring 9 is snapped around the tapered shankportion 0. lVhenever it is desired to remove the holder for any reasonthe spring 9 can readily be snapped off the shank a after first pryingone end of the spring down over the base or largest portion of theshank.

The invention thus provides a holder construction which can bemanufactured economically and whichcan be very quickly mounted in a ringrail or removed therefrom.

In some instances the .ring and the holder are madeintegral or in onepiece, such rings often being referred to as solid rings. It is obviousthat the construction provided by this invention is equally adaptable tothis type of ring as to that havingaseparate holder. The twoconstructions, therefore, are regarded as equivalents so far as thisinvention is concerned. I

While I have herein shown and described a preferred embodiment of myinvention, it will be understood that the invention may be embodied inother forms without departing from the spirit or scope thereof. Theconstruction shown is used more commonly in spinning frames and for thisreason the ring 6 has been referred to as a spinning ring, but it canalso be used in twister frames and the term spinning frame or spinningring, therefore, as used in the claims will be understood to includetwister frames, or twister rings, respectively.

Having thus described my invention, what I desire to claim as new is: v

1. In a spinning frame, the combination of a ring. rail having acircular aperture therethrough, the wall of said aperture being bevelledat the lower side of the rail, a ring holder seated on said rail andhaving a shank projecting through said aperture, said shank including anouter surface tapered in the same general direction as said bevelledsurface on the ring rail, and a split spring ring engaging the taperedsurfaces of both said rail and holder and tending to contract, wherebyit acts on said tapered surfaces to draw said holder downwardly againstsaid rail and tends to lock the holder in said position.

2. In a spinningframathe combination of ring rail having a circularaperture therethrough, the wall of said aperture being bevelled at thelower side of the rail, a ring holder seated on said rail and having ashank including a frusto-conical portion projecting through saidaperture, said frusto-conical against said rail and tends to lock theholder in said position. 7

ALFRED H. LAWE.

